Lubricant.



. UNITED STAT S PATENT OFFICE.

ANDREW H. SMITH, OF NEW YORK, N. Y.

LUBRICANT.

SPECIFIQATION forming part of Letters Batent No. 646,548, dated April 3, 1900. Application filed July 24, 1899. $erial No. 725,019. (No specimens.)

To all whom it may concern:

Be it known that I, ANDREW H. SMITH, of the city, county, and State ofv New York, have invented a new and useful Improvement in Lubricating Substances, of which the following is a true and accurate description.

My object is to produce an inexpensive and efficient lubricant for the axles of vehicles or for use wherever a semifluid lubricant can be employed.

The lubricant which I have invented is produced by mixing fish-scales with oil, grease, tar, petroleum, or otherlubricating substance or compound, either animal, Vegetable, or mineral. The scales are used in their natural condition,preferably being simply incorporated with an oleaginous or unctuous material in such proportion that their surfaces shall be covered thoroughly with the same, and thus be made to glide easily upon each other and upon the bearing-surfaces between which they may be interposed. The scales being hard, smooth, and flexible, and very thin, especially at their edges, readily insinuate themselves between the surfaces whose friction upon each other it is desired to prevent. At the same time the oily material employed adheres to the scales and is thus prevented from escaping from the bearing-surfaces.

can be utilized as above described, producing at a small cost an efficient and valuable lubricant.

That I claim as new, and desire to secure by Letters Patent, is

The herein-described lubricant consisting of fish-scales combined'with oil or other suitableagent.

ANDREXV H. SMITH.

Witnesses:

RICHARD W. BENNETT, J. P. REGAN. 

